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Updated: Jul 14, 2026
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C-arm-Free Simultaneous OLIF51 and Percutaneous Pedicle Screw Fixation in a Single Lateral Position
Published on: September 16, 2022
Spinopelvic fixation in deformity: a review
Edward R G Santos1, Michael K Rosner, Joseph H Perra
1Department of Orthopedic Surgery, University of Minnesota, Minneapolis, MN 55454, USA.
Neurosurgery Clinics of North America
|June 9, 2007
Summary
Achieving stable spinopelvic fixation, particularly S1 pedicle screw fixation using the tricortical technique, is crucial. Iliac fixation and interbody support enhance stability, but biologic fusion remains key for long-term implant survival.
Area of Science:
- Spine Surgery
- Orthopedic Biomechanics
- Spinal Fusion
Background:
- Spinopelvic fixation techniques are advancing, with a trend towards convergence.
- S1 pedicle fixation is a critical initial anchor point for spinopelvic constructs.
Purpose of the Study:
- To evaluate the efficacy of different spinopelvic fixation techniques.
- To identify optimal methods for achieving stable spinal fusion and long-term implant survival.
Main Methods:
- Assessment of tricortical S1 pedicle fixation technique.
- Evaluation of supplemental fixation options including iliac fixation and two-level interbody support.
- Analysis of the impact of global sagittal balance on implant performance.
Main Results:
- Tricortical S1 pedicle fixation demonstrated superior performance.
- Iliac fixation and two-level interbody support were identified as efficacious supplemental options.
- Optimal sagittal balance was associated with reduced implant pullout and favorable biomechanical forces on the fusion mass.
Conclusions:
- Effective spinopelvic fixation relies on robust S1 pedicle fixation and appropriate supplemental strategies.
- Achieving adequate biologic fusion is the paramount factor for long-term implant survival, irrespective of the fixation method.
